[MystroX5]

I had a faint smell from my vents when first starting up after the X5 sat for a long time in my garage. It would be for the first 3 seconds then disappear. Stagnate air sitting in the vents.
It no longer does this and I posted a thread on how to take out the cabin air filters, etc.. It wasn’t that at all. What I found in damp or snowy weather was the smell of wet road grime burning off the exhaust giving a dank/death smell but soon went away and didn’t ever come back until the exhaust got wet either from car washing or wet roads. It seemed to be like a self cleaning oven. It’s pretty common. Another smell can be from faint mold in the ac unit that comes from running the ac hard on high humid days and turning the car off. This tends to be very common in warm humid climates with most luxury cars. The cure is to turn off the ac about 5 minutes from home and the air dries the condenser before shutting down the car. This doesn’t allow mold to grow.